Franklin wright



UNITED STATES PATENT OFFICE.

FRANKLIN WRIGHT; OF INDIANAPOLIS, INDIANA.

RUBBER OF SMUT-MACHINES.

Specification of Letters Patent No. 7,833, dated April 30, 1850.

T 0 all whom it may concern:

Be it known that I, FRANKLIN WRIGHT, of Indianapolis, Marion county,Indiana, have invented new and useful Improvements in Smut-Machines; andI do hereby declare the following to be a full, clear, and exactdescription of the same, reference being had to the annexed drawing,making part of this specification, in which drawing a vertical sectionof the machine illustrates its operative parts.

The nature of my invention consists in constructing the machine with avibrating concave rubber which operates in connection with a feeding andrubbing cylinder; the cylinder forming the bed against which the rubberrolls the grains and thereby pulverizes and detaches the smut. Thismachine is also adapted to hull rice and act usefully on similararticles.

(a) is a frame suitably constructed for hanging the movable and otherparts of the machine. (6) is a hopper for holding the grain in bulkwhile through a gate (0) therein the feeding and rubbing cylinder (d)conveys the grain to and acts upon the grain in connection with thevibrating rubber (e). The vibrating-rubber (e) is a section lengthwiseof a cylinder and is held to its place by arms (f) and that play uponthe shaft (h). The vibrator (e) is adjusted by means of slots in thearms (f) and (g) and screws passing therethrough into the ends of thevibrator. Motion is given to the vibrator (e) by the arm (j) which isoperated by a crank (in) on the shaft of the beater (Z). Thesearrangements are also made at the other end of the vibrator so as tosteady its motion and keep it throughout its whole length at the sameadjustment. (m) is the trough into which the grain &c. falls and isconveyed to the beater (Z) which is incased in the usual way; the casebeing made trough-shaped at the bottom where it leads to the top of thescreen (71.). The air-blast from the fan (0) is made to issue at thesame point, so as to pass through the grain and smut &c., as they fall.The smut and dust &c. is thereby blown out at the spout (p) while thegrain is discharged at the foot of the screen.

Such matter as is not of size equal to the grain falls through thescreen into the receptacle (g) from which it is guided off into a heapseparate from the grain.

A drum, not shown in the drawings, is placed on one end of the shaft(h). By suitable belting from this drum, the several parts of themachine are moved in the line of the arrows; the vibrator receiving itsmotion, as before described, from the shaft of the beater, through thecrank (10) and connecting rod (j) which is jointed to the vibrator at(r).

(s) is a flange at the end of the cylinder (cl) for keeping in thegrain.

Having thus described the nature and construction of my invention what Iclaim therein as new and desire to secure by Letters Patent is' Thecombination with the feeding and rubbing cylinder (d) constructed andoperated substantially in the manner and for the purpose described.

FRANKLIN WRIGHT.

Attest:

THos. Gr. CLINTON, GEO. H. KNIGHT.

